Seiko Cal. 4421 - 101

The Seiko 4421-101 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-16f674fd9643]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

Related Models

• Seiko 4596-392
• Seiko 7084-919
• Seiko 4530-722
• Seiko 0795-432
• Seiko 5641-945
• Seiko 3896-240
• Seiko 7128-428
• Seiko 6255-684
• Seiko 6143-632
• Seiko 0723-951
• Seiko 6180-228
• Seiko 7051-357